CN106103980A - Directly or indirectly the blade root of wind turbine blade is attached to the sleeve pipe of turbine hub - Google Patents
Directly or indirectly the blade root of wind turbine blade is attached to the sleeve pipe of turbine hub Download PDFInfo
- Publication number
- CN106103980A CN106103980A CN201480077279.1A CN201480077279A CN106103980A CN 106103980 A CN106103980 A CN 106103980A CN 201480077279 A CN201480077279 A CN 201480077279A CN 106103980 A CN106103980 A CN 106103980A
- Authority
- CN
- China
- Prior art keywords
- sleeve pipe
- rib
- blade root
- width
- wind turbine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B37/00—Nuts or like thread-engaging members
- F16B37/12—Nuts or like thread-engaging members with thread-engaging surfaces formed by inserted coil-springs, discs, or the like; Independent pieces of wound wire used as nuts; Threaded inserts for holes
- F16B37/122—Threaded inserts, e.g. "rampa bolts"
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wind Motors (AREA)
Abstract
nullThe present invention relates to a kind of sleeve pipe intending the blade root of wind turbine blade is directly or indirectly attached to turbine hub，Including intending to be permanently integrated the slender body in described blade root in wind turbine blade manufacture，Wherein said body be provided with at least partly from the first outer end of described body along the hollow space of body longitudinal extension，Described hollow space has screw thread for described blade root being arranged on described wheel hub by bolt at least partially in periphery，Wherein said body includes two in the vertical preferably in Cylindrical symmetry shape part，Said two part is all along the longitudinal extension of described body，Part I therein has constant outer diameter D 1 and width W1 and extends from the first side of described body，Part II is adjacent to described Part I and has width W2 and the external diameter successively decreased on the direction of the second outer end of described body，The external diameter of wherein said Part II is decremented to D2 from D1，Wherein D1 ＞ D2.
Description
Technical field
The present invention relates to directly or indirectly be attached to by the blade root of wind turbine blade the sleeve pipe of turbine hub, this set
Pipe includes that wherein said body sets for being permanently integrated the slender body to described blade root in the manufacture of wind turbine blade
Having hollow space, described hollow space extends from the first outer end of described body at least partially in the longitudinal direction of described body, and
Described hollow space at least partially in being equipped with screw thread on periphery for described blade root being arranged on described wheel hub by bolt,
Wherein said body includes two in the vertical, and preferably in the part of Cylindrical symmetry shape, they are all longitudinally extending at body, the
A part has constant outer diameter D 1 and width W1 and extends from the first side of body, and Part II is adjacent to Part I and has
The external diameter that width W2 and the second outer extreme direction along body successively decrease, the external diameter of wherein said Part II is decremented to D2 from D1, its
Middle D1 ＞ D2.
Sleeve pipe according to foreword is well known in the art.
Background technology
Many known sleeve pipes are cast, irrigate or are laminated to blade root periphery, leaf during manufacturing wind turbine blade
Root in most of the cases has cylindrical cross-section.Wind turbine blade utilizes the bolt being engaged on sleeve pipe to be attached to wheel
Hub.
In known sleeve, (D1-D2)/(2 × W2) is about 0.25, and this is corresponding to 14 degree of inclinations of body Part II.
It has been found that this inclination causes there is higher shear stress at sleeve edge (the first outer end of body) in practice.
This especially makes the land and marine turbine more than 1.5MW go wrong, because for the diameter of given wheel hub or less
In the case of wish or need more bolt.Typical bolt as used herein is M24-M27-M30-M36-M42-M48.Work as set
Pipe, when blade root (three axle glass laminates) slightly highlights, is particularly present higher shear stress.Therefore, 1-is highlighted at sleeve pipe from blade root
Higher shear stress may occur during 5mm.
Summary of the invention
It is an object of the invention to provide the sleeve pipe that a kind of shear stress is lower than known sleeve.
To this end, the sleeve pipe of the present invention is characterised by 0.083≤(D1-D2)/(2 × W2)≤0.176.Therefore, body
The inclination of Part II between 4.74 degree to 10 degree.Relative to known sleeve pipe, this inclination produces at a fairly low cutting
Shearing stress.
Described Part II preferably has the external diameter successively decreased continuously.
D1 is preferably lower than or equal to maximum dimension D max of described body.
In the practical embodiments according to the sleeve pipe of the present invention, W1 is at most equal to the 5% of the total length of described body.At set
When the normal length of pipe is 396mm (Bolt sizes is M36), W1 is up to 19.8mm, but preferably 18mm.Manufacturer is by initial
18mm sleeve pipe removes 4-8mm, keeps the constant portion of 10-14mm whereby in wind turbine blade.Good load introduces
Need the value of minimum 10mm.
In order to load is correctly transferred to wheel hub from composite, blade root must utilize expensive milling machine/grinding machine and/or hold high
Expensive tool processes is flattened.It is an object of the invention to reduce smooth cost and labour cost further.This can be by providing this
Bright sleeve pipe realizes, and wherein said sleeve pipe is arranged to from laminate the most prominent.By making sleeve pipe protrude from laminate, blade root
Smooth become easier to compared to known sleeve.Blade root is smooth can concentrate on smooth steel sleeve portion rather than laminate, from
And reduce tool processes and/or flattening apparatus such as the cost of expensive milling machine/grinding machine.
By making sleeve pipe protrude from laminate, the shear stress at front surface will compared to the situation of sleeve pipe aligned layer casting die
Become much larger.The present invention is by solving disadvantages mentioned above in the shape at sleeve pipe top.
As pointed by PCT WO03/08/082551A1 (Ai Luodi company), the load bearing capacity of general sleeve pipe very great Cheng
The bond area between sleeve pipe and laminate is depended on degree.For certain load bearing capacity, sufficiently large set must be there is
Pipe area, which results in long sleeve pipe.It must also be ensured that high-quality engaging process.
In order to reduce the impact of engaging process quality and/or use long sleeve pipe, the sleeve pipe of the present invention is arranged to provide layer
Mechanical type form fit between casting die and sleeve pipe connects.In order to provide this mechanical type form fit to connect, sleeve pipe preferably sets
Having one or more cylindrosymmetric rib, described rib is between Part II and body the second outer end.Described mechanical type shape
It is connected offer self-locking feature and improves bonding strength.
Each rib includes first, second, and third rib the most in succession, wherein from the first side of body can, the first rib
Having the diameter R1 being incremented by between D2 and Dmax, the second rib has the constant diameter equal to the first rib maximum gauge
R2, the 3rd rib has the diameter R3 successively decreased between R2 and D2.
Described first rib preferably has width W3 and (R2-D2)/(2 × W3) is about 1.This corresponds to 45 degree of inclinations.
Described second rib preferably has width W4 and (R2-D2)/(2 × W4) is about 1.This corresponds to 45 degree of inclinations.
Accompanying drawing explanation
By the present invention is described further with reference to the drawings, wherein:
Figure 1A illustrates the set becoming known for that the blade root of wind turbine blade is directly or indirectly attached to turbine hub
Pipe；
Figure 1B illustrates the longitudinal section of known sleeve；
Fig. 2 A illustrate according to the present invention for directly or indirectly the blade root of wind turbine blade being attached to turbine
The sleeve pipe of wheel hub；
Fig. 2 B illustrates the longitudinal section of the sleeve pipe according to the present invention.
Detailed description of the invention
Figure 1A illustrates the set becoming known for that the blade root of wind turbine blade is directly or indirectly attached to turbine hub
Pipe 1.The purpose of sleeve pipe 1 is the blade root of wind turbine is directly or indirectly attached to turbine hub.Sleeve pipe 1 includes elongated
Body 2 is for being permanently integrated in described blade root in wind turbine blade manufacture.Body 2 includes two in the vertical in circle
Column symmetry shape part 3,4, they are all along the longitudinal extension of body 2.Part I 3 has constant outer diameter D 1 and width W1.The
A part 3 extends from the first side A of body 2.The Part II 4 of body 2 is adjacent to Part I 3 and has width W2.Second
Dividing 4 to have the external diameter successively decreased on the second B direction, outer end of body 2, the external diameter of described Part II is decremented to D2 from D1.?
Knowing in sleeve pipe, (D1-D2)/(2 × W2) is about 0.25, and this is corresponding to 14 degree of tilt angle alpha of the Part II of body.
Figure 1B illustrates the longitudinal section of the known sleeve 1 according to Fig. 1.Body 2 is provided with hollow space 5.Hollow space 5 is at body
Extend towards the second outer end B from body the first outer end A in 2 longitudinal directions.Hollow space 5 part be equipped on periphery screw thread S for
By bolt, blade root is arranged on wheel hub.Described bolt is arranged in sleeve pipe 1 by the first side A at this.
Fig. 2 A illustrate according to the present invention for directly or indirectly the blade root of wind turbine blade being attached to turbine
The sleeve pipe 10 of wheel hub.Sleeve pipe 10 includes that slender body 20 is for being permanently integrated in described blade root in wind turbine manufacture.
Body 20 include in the vertical two in Cylindrical symmetry shape part 30,40, they are all along the longitudinal extension of body 20.Part I
30 have constant outer diameter D 1 and width W1.Part I 30 extends from the first side A of body 20.The Part II 40 of body 20
Neighbouring Part I 30 and there is width W2.Part II 40 has the external diameter successively decreased on the second B direction, outer end of body 20,
The external diameter of described Part II is decremented to D2 from D1.In the sleeve pipe 10 of the present invention, 0.083≤(D1-D2)/(2 × W2)≤
0.176.In fig. 2, α is about 5 degree.
Fig. 2 B shows the longitudinal section locating sleeve pipe 10 of the present invention.Body 20 is provided with hollow space 50.Hollow space 5 is indulged at body 20
Upwards extend towards the second outer end B from the first outer end A of body 20.Hollow space 5 part be equipped on periphery screw thread S for
By bolt, blade root is arranged on wheel hub.Bolt is arranged in sleeve pipe 10 by the first side A at this.Sleeve pipe 10 is provided with multiple circle
The rib R of column symmetry, described rib is between Part II 10 and the second outer end B of body.Each rib R includes first, in succession
Two and the 3rd rib RD1, RD2, RD3.In terms of the first side A of body 20, the first rib RD1 has between D2 and Dmax incremental
Diameter R1 (D2 in this case).It is constant that second rib RD2 has equal to the maximum gauge of the first rib RD1 (=D2)
Diameter R2.3rd rib RD3 has the diameter R3 successively decreased between R2 and D2.First rib RD1 has width W3, and (R2-
D2)/(2 × W3) is about 1.Second rib RD2 has width W4 and (R2-D2)/(2 × W4) is about 1.
Substantially it is not limited to shown embodiment according to assembly of the invention, and can extend to fall into appended claim
All thinkable embodiment in book.
Claims (8)
1. intend directly or indirectly to be attached to by the blade root of wind turbine blade a sleeve pipe for turbine hub, including intending
Being permanently integrated the slender body in described blade root in wind turbine blade manufacture, described body is provided with at least partly from institute
State first outer end hollow space along the longitudinal extension of described body of body, and described hollow space has at least partially in periphery
Having screw thread for described blade root being arranged on described wheel hub by bolt, wherein said body includes two preferably in the vertical
In Cylindrical symmetry shape part, they are all along the longitudinal extension of described body, and Part I therein has constant outer diameter D 1 He
Width W1 and from described body first side extend, Part II therein adjacent to described Part I and have width W2 and
The external diameter successively decreased on the direction of the second outer end of described body, the external diameter of wherein said Part II is decremented to D2 from D1, wherein
D1 ＞ D2, it is characterised in that 0.083≤(D1-D2)/(2 × W2)≤0.176.
Sleeve pipe the most according to claim 1, wherein, described Part II has the external diameter successively decreased continuously.
Sleeve pipe the most according to claim 1 and 2, wherein, D1 is less than or equal to maximum dimension D max of described body.
4. according to sleeve pipe in any one of the preceding claims wherein, wherein, W1 is at most equal to the total length of described body
5%.
5. according to sleeve pipe in any one of the preceding claims wherein, wherein, described sleeve pipe is equipped one or more in cylinder
The rib of symmetric figure, described rib is between described Part II and the second outer end of described body.
Sleeve pipe the most according to claim 5, wherein, each rib includes first, second, and third rib in succession, wherein from institute
The first side stating body is seen, described first rib has the diameter R1 being incremented by between D2 and Dmax, and described second rib has
Equal to the constant diameter R2 of the first rib maximum gauge, the 3rd rib has the diameter R3 successively decreased between R2 and D2.
Sleeve pipe the most according to claim 6, wherein, described first rib has width W3 and (R2-D2)/(2 × W3) about
It is 1.
Sleeve pipe the most according to claim 6, wherein, described second rib has width W4 and (R2-D2)/(2 × W4) about
It is 1.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL2012326 | 2014-02-25 | ||
| NL2012326A NL2012326C2 (en) | 2014-02-25 | 2014-02-25 | BUS INTENDED FOR DIRECT OR INDIRECT CONNECTION OF A LEAF ROOT OF A WIND TURBINE TO A HUB OF A TURBINE. |
| PCT/NL2014/050849 WO2015130162A1 (en) | 2014-02-25 | 2014-12-10 | Bushing intended for connecting a blade root of a wind turbine blade directly or indirectly to a hub of a turbine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106103980A true CN106103980A (en) | 2016-11-09 |
| CN106103980B CN106103980B (en) | 2019-05-28 |
Family
ID=51022974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201480077279.1A Active CN106103980B (en) | 2014-02-25 | 2014-12-10 | The blade root of wind turbine blade is directly or indirectly attached to the casing of turbine hub |
Country Status (8)
| Country | Link |
|---|---|
| EP (1) | EP3111083B1 (en) |
| CN (1) | CN106103980B (en) |
| DK (1) | DK3111083T3 (en) |
| ES (1) | ES2796298T3 (en) |
| NL (1) | NL2012326C2 (en) |
| PL (1) | PL3111083T3 (en) |
| PT (1) | PT3111083T (en) |
| WO (1) | WO2015130162A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115111249A (en) * | 2022-08-02 | 2022-09-27 | 远景能源有限公司 | Embedded bolt sleeve and wind driven generator |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107366673A (en) * | 2016-05-11 | 2017-11-21 | 中材科技风电叶片股份有限公司 | Bolt sleeve, blade root built-in fitting and the wind electricity blade production method of wind electricity blade |
| DK3557041T3 (en) | 2018-04-16 | 2022-06-07 | Nordex Energy Se & Co Kg | SLEEVE FOR A WIND ENERGY SYSTEM ROTARY BLADE, FLANGE INSERT, WINDENER GIANLÆGSROOTOR BLAD AND WIND ENERGY SYSTEM |
| EP4423389A1 (en) | 2021-10-29 | 2024-09-04 | Viventus Holding B.v. | Method for securing a bushing in a blade root of a wind turbine blade and cap for use in said method |
| IT202200005123A1 (en) * | 2022-03-16 | 2023-09-16 | Bladeworks S R L | BLADE FOR A WIND TURBINE AND CONNECTION METHOD FOR CONNECTING SAID BLADE TO A HUB OF SAID WIND TURBINE |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1189501A (en) * | 1958-05-19 | 1959-10-05 | Consolidation packing for lag bolts in railway ties | |
| US3370631A (en) * | 1965-05-17 | 1968-02-27 | Diamond Expansion Bolt Co Inc | Wood fastener |
| DE10214340C1 (en) | 2002-03-28 | 2003-11-27 | Aerodyn Eng Gmbh | Blade connection for the rotor blades of a wind turbine and method for its production |
| ES2353325B1 (en) * | 2009-06-23 | 2012-01-25 | Gamesa Innovation & Technology, S.L | RIGIDIZATION OF THE PALA ROOT OF AN AEROGENERATOR. |
| CA2726490C (en) * | 2009-12-29 | 2018-01-16 | Studio Milan Design Build, Inc. | Threaded connector for pole, machinery and structural elements |
| CN202370961U (en) * | 2011-12-09 | 2012-08-08 | 连云港中复连众复合材料集团有限公司 | Connecting bolt at root part of fan blade |
-
2014
- 2014-02-25 NL NL2012326A patent/NL2012326C2/en active
- 2014-12-10 DK DK14830895.0T patent/DK3111083T3/en active
- 2014-12-10 ES ES14830895T patent/ES2796298T3/en active Active
- 2014-12-10 WO PCT/NL2014/050849 patent/WO2015130162A1/en active Application Filing
- 2014-12-10 PL PL14830895T patent/PL3111083T3/en unknown
- 2014-12-10 EP EP14830895.0A patent/EP3111083B1/en active Active
- 2014-12-10 PT PT148308950T patent/PT3111083T/en unknown
- 2014-12-10 CN CN201480077279.1A patent/CN106103980B/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115111249A (en) * | 2022-08-02 | 2022-09-27 | 远景能源有限公司 | Embedded bolt sleeve and wind driven generator |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2015130162A1 (en) | 2015-09-03 |
| ES2796298T3 (en) | 2020-11-26 |
| EP3111083A1 (en) | 2017-01-04 |
| EP3111083B1 (en) | 2020-03-18 |
| PT3111083T (en) | 2020-06-17 |
| DK3111083T3 (en) | 2020-06-15 |
| PL3111083T3 (en) | 2020-09-07 |
| NL2012326C2 (en) | 2015-08-26 |
| CN106103980B (en) | 2019-05-28 |
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